Insider Buying: Taking a Controlling Stake in a Struggling Retailer? Spencer Platt / Getty Images The biggest insider trading news of the week may have been Amazon.com Inc. (NASDAQ: AMZN) founder Jeff Bezos shedding over $4 billion worth of the company’s shares as he reportedly prepares to move to Florida to take advantage of the better income tax environment. When it comes to insider buying, notably a beneficial owner stepped up and took a controlling stake in a struggling retailer. Also, public offering ...